Power-transmitting device or mechanism.



No. 858.789- PATENTED JULY 2, 1907.

W. P. BRAOHMANN.

POWER TRANSMITTING DEVICE 0R MECHANISM APPLICATION FILED JULY24, 1906.

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26 I I 10 l l I o g Q 1 WITNESSES: I I ,mvgmonz I 4 'Yyflha 'PErac f I mn No. 858,789. PATENTED JULY 2, 1907. W. P. BRAGHMANN.

POWER TRANSMITTING DEVICE 0R MECHANISM.

APPLIUATION IILBD JULY 24. 1906.

6 SHEETS-SHEET 4.

WITNESSES ATTORNEYS.

$1? T 74 2 THEE-1 HERB 1m i111? No. 858,789 PATENTED JULY 2, 19071 w. P.BRAOHMANN. POWER TRANSMITTING DEVICE 0R MECHANISM; APPLICATION FILEDJULYZ'IAIQOG.

6 SHEETS-SHEET 6,

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WILLIAM- P. BRACIIMANN, OF NIIEWARK. NEW JERSEY.

POWER-TRANSMITTING DEVICE OR MECHANISM.

Specification of Letters Patent.

Patented July 2, 1907.

Application filed July 24,1906. Serial No. 327.496-

To rill w/iom. it Htlll/ concern:

lie it known that 1, WILLIAM F. BIL-\(TIIMANN, a citizen of the UnitedStates, residing at Newark, in the county of ,l'lssex and State of NewJersey, have invented certain new and useful .llnprovemcnts in lon'crlransmil-ting Devices or Mechanisms, and 1 do hereby declare thefollowing to be a full, clear. and exact description of the inventionsnch as will enable ui-in'l's skilled in the art to whicli it apperlninsto main and use the srnnc, reference being had to the accompanyingdrawings. and to letters of reference marked thereon. which form a partof this specification.

This invention relates. generally, to that class of mechanisms known inthe art as frictions which are used with power-transmission devices,hoisting ma ehinery. and the like; and, the Plillvlpztl object of mypresent invention is to provide a simply constructed mephanisni for thetransmission of power, comprising a novel construction of friction andnovel and i1nproved means for actuating the friction, all with a view ofproducing an elliciently operating means which may be used in connectionwith the friction drum of a hoisting nnuthine or other similar machines,elevator-drunis; or. as power-transmission for shafting, where power isto he transmitted from one floor or room to another; or, it may be usedin connection with the transmission gearing of automobiles and othersimilar machines or engines; and, in fact my invention is capable of usewith machinery and mechanisms of the various kinds where one part is tobe brought in operative frictional engagement with another part, fortransmitting the power from the one part to the other part, withoutinterrupting or shutting off the main supply of the power.

Other objects of this invention not at this time more particularlymentioned will be clearly understood from the following detaileddescription of the invention. v With the'various objects of theinvention in view, the same consists in the general arrangements andcombinations of the devices and parts, as well as in the details of theconstruction of the same, all of which connection therewith apower-transmission gear and the friction-devices for producing theoperative frictional engagement of the sliding, drum with thetransmission gem. the parts being shown in their normally disengagedrelation; and Fig. It is asimihu' view of the same parts shown in theirowuntivw-ly connected relation. Fig. 4 is a longitudinal. verticalsection, on an enlarged scnie, suid section being taken on line 4--4 insaid Fig. 3. certain portions of the supporting frame and the endstandards or supportshcingomitted from this view; and Fig. 5 is a detailseclional representation, taken on line 55 in said Fig. 4, looking inthe direction of the arrow Figs. (3 and 7 are two perspective. views,respectively, of the upper end-portion of the one standard or supportand the be); to be used therewith for producing one of the hearings ofthe main shaft, said -views showing in connection with said parts,certain huh-portions forming integral parts of said standard and box andeach hub-portion being formed with helical wedge-shaped face-portions.Figs. 8 and 9 are the two end-faces of a shifting member, and

transverse sectional representations of the main shaft upon which saidmember is slidably arranged; and

Fig. 10 is a face view, on an enlarged scale, of a spurgear adapted tobe fixed upon the main shaft, provided with a series of adjustable andreadily replaceable friction devices, with which the sliding or movablehoisting drum can be brought in operative holding ongagement. Fig. 11 isan end elevation of said spurgear and" its parts; Fig. 12 is atransverse vertical section of the same, said section being takenon linel2 12 in said Fig. 10; and Fig. 13 is a sectional representation of thesaid device, taken on line 13-13 in Fig. 11. Fig. 14 is a plan view of apower-transmission gear for automobiles, and similar purposes, the samebeing provided with the various devices and parts which embody theprinciples of this invention; and Fig. 15 is a side view of a pair ofhangers and a shafting provided with a power-transmissiondevice'embodying the leading features of this invention.

Similar characters of reference are employed in all of 1 the abovedescribed views, to indicate corresponding parts.

device or mechanism, the same comprising a .pair of end-pedestals orsupporting standards 2 and 3, and arranged npon and suitably secured toa suitable founda; tion, base or casting 4 carrying the usual hoistingengine 5 and its boiler 6. Each pedestal is provided in its uppersurface with the usual semi-cylindrical -bear-.

Referring now to Figs. 1 to 13 inclusive, the reference character 1indicates the complete power-transmission contiguous to itssemi-cylindrical Deming-portion 7, and extending lrom the upper port ofits inner face, with an integral projection which is bounded at the topby the straight marginal portions 12 and I3 and the scmi'cylimlricalbrutriug-imrl-lun H, which is in alinement with the booting-{within 7,and also by these-inicylindrical. murginul surfnvu-porliun .5. Thereference characters 16 and 17 indiculv a pair of helical wedgeshapcdsurface-portions, 18 indicating an off-set or step formed between thelowest purl. IQ of the portion 1'6 and the hi he part 20 oi the portion17. In u like manner, the bearing-host ll is nnuhwith n projectionloving a. pair of helical wedgc-shapml surface-portions 2i :ind 22,forming an ink-grill port of the one side of the bearing-box, 23 beingill! ul'l'oul or step fomnd between the lowust part 2-! of tho pofliun2] and the high cstpnrt 25 oi the portion 22. "Fire angular inclinntirmsoonnectcd relations.

rated by a pair of oppoei 1 extending shoulders. u! o I screws 37', orother quituhlo 55,

of the v'ariona surface-1mm inn: aro such. that when the parts have beenscoured in lln-ir mumbled positions, shown in Fig. 5, theuurfru-v-pirllnns 16 and 22, and the surfuce-portions l7 and 2! form twopairs of unobstructed flat, but angulsrlydiapnsul laces, which areseparated by the two diamelrit'ully and oprmsitely located off-sets orshoulders 18 uml 23. subatuntially as illns-' trated. Upon its uppergurhwe the projection formed upon the side of the hearing-box 9 isprovided with a.

series of ratehettectll or lmldi in; acmltions 26.

Loosely arranged upon the main shaft 11, and capabio of an oscillatory,an well no a slidable motion longi tudinnlly upon the shaft, is v.sleeve 27, said sleeve being provided upon its one face, next-to thehelical wedge-shaped surfncwportions ofthe respective projections whichextend from the sides of the pedestal 3 and the bearing-block or box 9,\uth a pair of helical wedg shaped surlaceportioiu 28 and 29, the somebeing sepatel y hunted and diametrically [tn-ta 30 and 31. the angularinclinations of the surface-[muons 28 and 29 being much that the highestpurist-32 and 33 and the lowest parts 34 and 35 of the roupoctivuportions will be arranged clearly shown in Fig. 9 of the drawings. Whenthe sleeve 27 is in its operative position upon.

I the main shaft 11, then the helical wedgeshsped surhoe-portions e! umole mm are in rotatable sliding enah the helical wedge-shaped pgemeut orconttwt wi ons of the upper part of lurface portionr oi the prujecti upedestal 3 and the homing-block or box 9, either a shown in Fig. 2 oithe drawings, whcnthe parts are in theirnormsl'ini'tial positions; or,as represented in Fig. 3, when the various pnrla-aro in theiroperatively Extending from an outer margisl'uevc 27 is a socketedreceivtowhich is secured by meme 0! fastening means, a post 88. At itsupper end, thc said pout 381m an outwardly oxtending mo 39 upon which ispivoted In actuating handdaver 40. Pivuuliy mnnocled with the one end 01said lever 40 is sduwnwurdly uxtcmlingrod 41 whi h extends through apair of guides 42 and 43 upon the post 38, and has a forwardly extendingfinger 44 at its lower end ,which can ho ho mglu lnw it perative.holding or looking mtgugl'lnl'ltl- Willi any one of the ratchet teeth oraerrarinns 25. on vplum-n. By dvpreoring the finger-pieciend or hmulll prli m tl u rod 41 is lilted against the uuiion of a suitable apring,

'nal edge-portion of said ing arm or projection 36 ensan tinlly anillustrated.

. which is let in or i usshoivn nu l for the nu .doacri'lisd. w

'54, and the usual series of us 45, whorl-lay the [inner-44 is raisedabove the ratch t; teeth 25 and a rotutive nmvoment oi the sleeve 27uponlhe shalt il in a direction away from the open nlnrcunbe produced,at the some time rvsulliug in a. sliding motion in the direction of thearrow s e Fi 4, upon the main shaft. By relwsiug the prcmure from thelow-r 40, rim linger 41 is again thrown intoig H mi Ur ked engugemenr.with anolhvr ratchetteeth 25, when-by the alcove 27 is held in itsadjusted position. as will In clearly understood. By a similar p f fl'lnverdll, J-nd the pullingoi the post 38, and its parts tuwartl' theoperator, the sleeve 2'; can rututcd in the opposite direction upon the.shaft, ll. thereby again returning the parts to their nor. mal initialpusitiuml, ind ientod' in 1" ig. 2 of the drawings. Upon the up [mail I.inch, 1.] u: said ul eeve 27 is formed wirh Ute thickened or enlarged prtion 46, said enlarged portion being made with suitably disposedreciving sockets 47 norms which extend the pins 48, substan- Iicllm's orwheels 49, preferably of steel. sire rolntively arranged upon said pins48 within the r'Qct-iving HOL'kUlH 47, each roller or wheel having a.portion amending from its socket, and being in rolling engagement with:1 steel or other suitable ring 50 3 otherwise secured to the end of aI! desired, the mid thickened or enbe provided. also, with othersuitably disposed mcei vi ng sockets 52 in which may be placed suitablewearing-pins 53, the ends of which extend lrorn mid nuekotn 52 and arein sliding engagement, with the ring 50 of the hoisting drum. 51,substantially spaces to be presently more fully again he hoisting'jlnun51. E l portion 46 may be preferable to use the wearing-pins 53 n a di ito the rullcra or wheels 48, it will be evi- 1 i g, h e of the pins 53may be dispensed with, in uihicli case the rollers only are used-Thoihuiuting drum, just mentioned, is loosely and slitlsbly arrangedupon the main um ll, the same being prgvidixl at one end with theusunlonnular flange holding depressions 55 with can be brought inholding engagement While it may guy-one oi'whicli the uaiml pivotm 56,seoFig. 1.11mi strirctionu of hoistin ordinarily used with the usualconengines. At ila opposite and, the drum' 51in made with mother elementor annular flange 57, formed with a ehumbered portion 58 which isprovided, with so inclined annular binding surface 59, as clom-l'yilluutmted in Fig-; 4 o the drawings. suitably secured in a. fixed ponitmom, f-wedgou orkeyu 00, or other suiiable fastening defied], is anelement in the form f a apur gcar 61 for driving the said main shalt11': Upon its inner face, the iiaid spur-gear in branded with a centralldisposed chain her or wckoted portion 62 through which um i momma. acoiled spring 03 beingarranged in said chnniiier, and and springencircling the shaft and lm'ving itionu and extending into a depression04 in the end of the lmintillg drum. The coils o! the spring are at allthnol nmre or loan compressed so as to tend to distend ind-l m g,prumuru in the direction of. the arrow z i mid Fig. 4. 'Upmi its innerface the spurgear is made witli'any suitable nunvln'r -radiolly disrmscdfrictionblmflt holding or worrying memberstili, each member comprim'ng apalm! shin-Wu ion upon the main shalt 11, by

l or swinging holding-or retaining dog llub7extcudiugiromtheeirv cularwall (i8 oi the chamber 62 toward the outer peripheral or toothed surlamof the gear. The l'orward entLportions of each pair of said side wallsare connected by a suitable partition (59 formed with a perl'mntion ul'hole 7t), and an upper or top-plate 71, forming a. reeeivine, pocket 72in which isarrai'iged the friction block 71% provided with the inclinedor chamiered holding surface 74 adapted to engage with the inclinedsurface 59 of the hoisting drum substantially in the manner to belu-reinztl'ter more fully described.

Openings 75 are l'ormed between each pair of sidewalls (37 and theannular wall (38 and respective partitions (ill, as cl arlyillnstrntw'l, these openings being for the purpose otreadily getting atan adjusting means connected with each friction block 73), that the saidblocks can be moved in outward directions to have their inclinedsurfaces 74. more readily and properly bind with the inclined surf-nee59 of the hoisting drum. The adjusting device which is connected witheach block 73 consists, essentially, of a screw-threaded nut or metaldish 76 suitably secured upon the end of tho blopk-bv means of pins orscrews 77, a screw-threaded rod or stem 78 being arranged in theserew-threaded nut or disk 76 of each block 73, and extending throughthe hole 70 and across the opening 75. The opposite andslightly reducedends 79 of the rods or stems 78 are rotativcly arranged in a bearing 80in the wall 68, each rod being provided with a wrench-receiving portion81 and a pair of nuts 82 and 83, the purposes of which are evident; and,when slightly loosened, permit of the rod or stem 78 to be turn edby'means of a span nei=wrench which is inserted in the opening 75 andupon the portion 81, so as to move the irictiolrblock in an outwarddirection for its proper adjustment.

The spur-gear (i1 is driven fronra pinion 84 upon a shaft 85, rotatablyarranged in bearings 86 secured to. 'the pedestals or supports 2 and 3,the shaft being driven from the engine 5 in the usual manner, and aswill be clearly seen from an inspection of Fig. l of the drawings.

The operations of the mechanisms and parts just described will beclearly understood fromvan inspection of the drawings, and moreespecially from Fig. 4, and need not therefore be further set forth.

In Fig. 14 of the drawings, I have illustrated the application of mypresent invention as a power-transmission mechanism for automobiles andthe various power driven machines. In this construction, in lieu of thehoisting drum 51, I use a gear 87, which is made with the cone-shapedinterior or chamber 88, as indicatedin clotted outline in said Fig. 14'.The arrangements and constructions of the spur-gear and of the shiftingdevice are similar to those shown in Figs. 1 to 13 inclusive, and asdescribed in the foregoing specification, and need not therefore, be'further set forth. The power from the gear 87 is transmitted to apin'iou89 arranged upon a shaft 89, as shown.

In Fig. 15 is shown a pair of hangers 90 provided with bearings 91 whichcarry a main shaft; 92, said shaft being provided with a. friction drum93 similar in construction to the spur-gear previously described, withwhich can be brought in frictional engagement, a conechambered drum orpulley-wheel94 which is shifted brek" and forth upon the main shaft bynieans of the shifting device described in the foregoing. In all otherrespects the arrangements oil-he parts are similar to those already setforth in connection with the construction shown in said Figs. 1 to l3inclusive.

1 claim:

1. ln :1 power-transmissiori mechanism, the combination with a driving;shaft, o1. a friction-clutch comprising a main body-portion for use us adriving element, said body being provided with a centrally disposed holefor ill-rungin;- aid body upon said shulit, a laterally extending andcentrally disposed annular wall on one side of said bodyportion,,suidwall forminga receivirn, chamber through which the shaft extends,side-walls arranged in pairs and extending radially from said annularwall. a secluded t'rieliondlloek holding; member carried by each pair ofside walls. each member being closed at. its bottom and surroundingside, but open all: the end opposite said bottom, the edge-portionswhich surround snld open end being tapered, as set forth, and afrir-tion-blrmk adjustably arranged in each holding: member, said blockshaving inclined engaging surfaces"projecting beyond the tapered open endof each holdiing member, and n cone'shuped driven element; arranged uponsaid shaft. \vlth which the engn inc" surfaces of said blocks areadapted to be brought. ln-f| etionul engagement, all combined with amenus of adjustment connected with each frietion blocli and urranged inthe open space between each pair of radially extending side-walls,substantially as and for the purposes set forth.

2. ln apower-lransmission mechanism, the eombiinition with a drivingshaft, of a friction-clutch comprising a main body-portion for use as adriving element, said body being provided with a centrally disposed holefor arranging said body upon said shaft, :1 laterally extending andcentrally disposed annular wall on one side of: said bodyportion, saidwall forming; a receiving vchamber through which the shaft extends,sidewalls arranged in pairs and extending radially from said annularwall, a St|Cli('1.t.(l

friction-block holding member carried by each pair of side: walls, eachmember beiin, elosedat its bottom and surrounding side, but open at theend opposite said bottom, the edge-portions which surround said open endbeing tapered, as set forth, and a frietioirbloek adjnstah'ly arrangedin each holding member. said blocks having illclln'ed engaging surfacesprojecting beyond the open end-of each holding member, and a cone shapeddriven element arranged upon said shaft with which the engagingsurit'nces'of said blocks are adapted, to'be brought: in frictionalengagement, all combined with a means 01.

adjustment connected with each friction-block and ill" ranged in theopen space between each pair of'radlally extending side-walls,consisting of screw-tbreaded adjustlug rods, eachrod having anend-portion rotatively connected with the annular wall of said mainbody-portion, and havingits opposite end-portion extending through thebottom of a holding member and screwed into a block, a wrench-receivingportion upon each rod, and loelcnuts upon the screw-threaded portion ofeach rod, substantially as and for the purposes set forth. I

3. 1n :1 power-transmission mechanism, the combination with a drivingshaft, of a friction-clutch comprising a main body-portion for use as'adriving element, said body being provided with 11 centrally disposedhole for arming ing said body upon said shaft, a laterally extending andcentrally disposed annular wall on one side of said bodyportion, saidwall forming a receiving chamber through which'the shaft; extends,sidewalls arranged in pairs and extending radially from said annularwall, a socketed friction-block holding member carried by each pair ofside walls, each member being. closed at its bottom and surroundingside, but open at the end Opposite said bottom, the edge-portions whlchsurround said open end being tapered, as set forth, and a friction-blockadjustably ar; ranged in each holding member, said blocks havinginclined engagingsnrtnees projecting beyond the tapered open end of eachholding; member, and a cone-shaped driven element arranged upon saidshaft with which the engaging surfaces of said blocks are adapted to bebrought in frictional.engagement, all combined with ameans of adjustmentconnected with each friction-block and arranged in the open spacebetween each pair of radially extending side-walls, consisting ofscrew-threaded adjust- 1m, rods, each rod having an endportionrotatively connected with the annular wall of said main body-portion,and having its opposite end-portion extending through the hot-torn ofaholding member a screw-threaded metal disk secured to each block intowhich the screw-threaded endportion of the adjusting rod is screwed, awrench-receiving, portion upon each rod, and lock-nuts upon thescrewthrcadcd portion of each rod, substantially as and for the purposesset forth.

4. Ina power-transmission mechanism, a main shaft, hearing members inwhich said shaft is mounted, each hearing member comprising a standard.formed with a semirylindrical bearing portion, a hearing-block securedupon each bearing-portion of a standard, one of said standm'ds beingprovided upon the side of its bearing p rtion with a helicalwedge-shaped surface-portion formedkwith radially extending oflf-sets,and the bearing block is sccured upon said standard being provided uposide with a corresponding helical wedge-shaped so] portion formed withradially extending; elf-sets, a s ,3 arranged upon said shaft, saidsleeve being provided ugllon its side with a pair of helicalwedge-shaped engagingsih faces, all combined with a friction clutchcomprisin driving element fixed upon said shaft, and u driven i ihentloosely mounted upon said shaft, said driven element being driven fromsaid sleeve, substantially as and forjfit hg purposes set forth.

5. In a 'power transmlssion mechanism, a main shaft,

' bearingmembers inwhich said shaft is mounted, each sleevearranged-upon said shaft, said sleeve being provided upon its side witha pair of helical wedge-shaped engaging surfaces, all.comblued with a.friction clutch comprising a driving element fixed upon said shaft, adriven element loosely mounted upon said shaft, and weering pinsextending from said sleeve for actuating said driven element,substantially as and for the purposes set forth.

6.1m a powertmnsmisslon mechanism, a main shaft, hearing members inwhich said shaft is mounted, each bearing-member comprising a standardformed with a semi-cylindrical bearing-portion, a bearing-block securedupon each bearing-portion of a standard, one of said standards beingprovided upon the side of its bearing por tion with a helicalwedge-shaped surface-portion formed with radially extending off-sets,and the beuring block which is secured upon said standard being providedupon its side with a corresponding helical wedgeshaped surface-portionformed with radially extending offsets, a sleeve arranged upon saidshaft, said sleeve being provided upon its side with a pair of helicalwedgeshaped engaging surfaces, all combined with a friction-clutchcomprising :1 driving element fixed upon said shaft, said sleevebuing'provided with receiving-sockets, a roller in each socket, a drivenelement loosely mounted upon said shaft and a ring connected with saiddriven element with which said rollers are in rolling engagement,substantiali" s and for the purposes set forth.

. in a power-transmission mechanism, a main shaft, "tiling members inwhich said shaft is mounted, each aring member comprising astanderdformedwith a semi-cylindrical beariug-portion, a bearing-blocksecured upon each bearing-portion of a standard, one of said standardsbeing provided upon the side of its bearing portion with a helicalwedge-shaped surface-portion formed with radially extending oft-sets,and the bearing lock which is secured upon said standard being providedupon its side with a corresponding helical wedge-shaped surface-portionformed with radially extending oliE-sets, a sleeve arranged upon saidshaft, said sleeve being pro vided upon its side with apair of helicalwedge-shaped engaging surfaces, all combined with a friction clutchcomprising a driving element fixed upon said shaft, said sleeve beingprovided with receiving-sockets, a roller'in each socket, a. drivenelement loosely mounted upon said shaft and a ring connected with saiddriven element with which said rollers are in rolling engagement, andwearing pins extending from said sleeve for actuating the drivenelement, substantially as 'and for the purposes set forth.

In testimony, that I claim the invention set forth above I'havehereuntoset my hand this 21st day of .Tuly, 1900.

WILLIAM P. BRACHMANN.

Witnesses:

F. H. W. ERAENTZEL.

